Workers' Clothing & Protection
300 ActiTube Activated Carbon Filters 3 x Boxes of 100 Display 9 mm Single Turn Filter Pipe in Acti Tube Tune Filter Tips Activated Carbon
Actitube; Smart smoking – Active Carbon Filter 3 x 100 = 300 Filters White = ceramic For screwing in or whistling, such as wooden pipes of Actitube Achtung: Ceramic (White) always out on the glow Black = Plastic
https://www.bizrate.co.uk/workersclothing_protection/300-actitube-activated-carbon-filters-oid30375522272.html